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Spacetime-varying couplings and Lorentz violation

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arxiv astro-ph/0212003 v1 pith:PIJVKVZ7 submitted 2002-11-30 astro-ph hep-ph

Alan Kostelecky , Ralf Lehnert , Malcolm Perry This is my paper · ORCID
classification astro-phhep-ph
keywords lorentzspacetime-varyinganalyticalassociatedconstantconstantsconstraintscosmology
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Spacetime-varying coupling constants can be associated with violations of local Lorentz invariance and CPT symmetry. An analytical supergravity cosmology with time-varying fine-structure constant provides an explicit example. Estimates are made for some experimental constraints.

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Cited by 1 Pith paper

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  1. Lorentz Violation with Gravitational Waves: Constraints from NANOGrav and IPTA Data

    astro-ph.CO 2025-05 conditional novelty 6.0 of 10

    Using NANOGrav 15-year and IPTA second data release, this paper sets a 68% confidence lower bound of 10^-19 GeV on the Lorentz-violating scale M_LV in a modified gravity model.

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